com.att.aro.console.util.ThrottleUtil.java Source code

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Here is the source code for com.att.aro.console.util.ThrottleUtil.java

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/*
 *  Copyright 2017 AT&T
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
*/
package com.att.aro.console.util;

import org.apache.commons.lang.StringUtils;

/**
 * Throttle number and unit utility class 
 */
public class ThrottleUtil {

    private static ThrottleUtil amInstance = new ThrottleUtil();

    public ThrottleUtil() {
    }

    public static ThrottleUtil getInstance() {
        return amInstance;
    }

    //Parse the String number and organize the unit to kbps 
    public int parseNumCvtUnit(String number) {
        int temp = -1;
        if (StringUtils.isNumericSpace(number)) {
            temp = Integer.parseInt(number);
            return temp;
        } else {
            char unit = number.charAt(number.length() - 1);
            if ('m' == unit || 'M' == unit) {
                String subSt = number.substring(0, number.length() - 1);
                temp = Integer.parseInt(subSt);
                return temp * 1024;
            } else if ('k' == unit || 'K' == unit) {
                String subSt = number.substring(0, number.length() - 1);
                temp = Integer.parseInt(subSt);
                return temp;
            } else if (Character.isDigit(unit)) {
                temp = Integer.parseInt(number);
                return temp;
            }
        }
        return temp;
    }

    public boolean isNumberInRange(int number, int from, int to) {
        if (-1 == number) {
            return true; // special case for no throttle apply
        } else {
            return number >= from && number <= to;
        }

    }

}